Can Stryde nail correct O-type legs or knee overextension?

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My legs are not very straight due to my incorrect walking posture.

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Hi jievince3
For O type bent legs, you need to see a doctor to know better.  Internal nails such as Stryde are all straight but can be inserted into a slightly bent leg, which often corrects it to be more straight.  My legs were also slightly O shape but not that bad.  During the surgery and lengthening,  they were corrected and look better now.  However, severely bent legs may not be able to take internal nails as internal nails are straight. 
See the doctor for the consultation!

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I am a little bit straight, others can't even see it.